#include <iostream>
#include <string>
using namespace std;
class std_m{
public:
    string std_name;
    string std_id;
    void showstd(){
        cout<<"姓名:"<<std_name<<endl;
        cout<<"学号:"<<std_id<<endl;
    }
};
int main()
{
    std_m std1;
    std1.std_id="110";
    std1.std_name="张三";
    std1.showstd();
    return 0;
}